.zhu-div-left{
    width: 15%;
    height: 500px;
    border: 1px solid #daecfb;
    float: left;
    padding: 13px;
    padding-left: 29px;
    margin-left: 20px;
    margin-top:10px;;
}
.zhu-div-right{
    float: right;
    width: 75%;
}